I own a 2004 F350 6.0 diesel crew cab Lariat long bed 4X4 SRW that had in the past 3 problems with EGR. The last one out of warranty costed me 8K. My truck only has 86K miles.
Just purchased a 2016 Lance 1062. For that I also purchased Vision 19.5" wheels and new tires to withstand 4500 lbs per wheel. The truck came with a rear torsion bar. I installed 4 Hellwig shocks and air bags.
End of April I am going to take my first trip with the camper. Prior to this the only heavier haul the truck did was to pull a 6000 lbs boat and even that not often as the boat sat in the water for the Summer.
I am going to try to take it easy and not push the engine. I drove the camper from NH to NJ with original tires and no problem. I bought the Vision because my tires could burst with the weight on a long trip.
We will see how the 6.0 engine will hold. We cannot predict things: my 2006 Mercedes Benz SLK350 with 63000 miles just threw a rod and the new engine cost me 10K. Who would think this would happen to a MB?
Last time I had the EGR cooler problem, the Ford dealer that fixed it told me in a very assured way I would not have any more problems with it. That was in 2009. People tell me they made modifications to the cooler and the chips that control it. I do not know anything about it to give you an intelligent answer. I am not a mechanic, I am an engine monitor. I just let my wife know the truck is not running.
Godspeed.